{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["instrument", "person", "mythical figure", "plant", "food", "astronomical object"], "input": "The mechanism by which its pairs of pollinia attach themselves to an insect 's proboscis was discovered by Charles Darwin and described in his book on the \" Fertilisation of Orchids \" ."}
{"instrument": [], "person": ["Charles Darwin"], "mythical figure": [], "plant": [], "food": [], "astronomical object": []}